Absorption type refrigerating machine

Abstract

A refrigerating machine including an evaporator section, absorber section, condenser section and a regenerator section respectively divided into two stages. The first evaporator stage and second evaporator stage are arranged so as to be enclosed by the first absorber stage and the second absorber stage, with the first absorber stage being combined with the first evaporator stage and the second absorber stage being combined with the second evaporator stage to respectively form separate units. The first low temperature regenerator stage and the second low temperature regenerator stage are arranged so as to be enclosed by the first condenser stage and the second condenser stage, with the first condenser stage being combined with the first low temperature regenerator stage, and the second condenser stage being combined with the second low temperature regenerator stage to respectively form separate units. Flow passages for chilled water and cooling water create an efficient heat transfer in the divided evaporator, absorber and condenser sections, with a flow of cooling water flowing into the absorption type refrigerating machine being reduced and overall efficiency of the refrigerating machine being increased.

I claim: 
     
       1. An absorption type refrigerating machine comprising an evaporator means, absorber means, condenser means, a regenerator means, solution heat exchanger means, solution pump means, refrigeration pump means, and piping means for supplying chilled water into said evaporator means and cooling water into said absorber means and said condenser means, wherein each of said evaporator means, absorber means, condenser means, and regenerator means is divided into N stages, each of said Nth stages of said evaporator means are arranged so as to share a common enclosure with corresponding Nth stages of said absorber means, a first stage of said divided absorber means and a first stage of said divided evaporator means are combined so as to form a first unit, a second stage of said absorber means and a second stage of said evaporator means are combined to form a second unit, said first and second units are arranged in succession, and each of said Nth stages of said regenerator means are arranged so as to be enclosed by said N stages of said evaporator means, a first stage of said condenser means and a first stage of said regenerator means are combined to form a third unit, a second stage of said condenser means and a second stage of said regenerator means are combined to form a fourth unit, and wherein said third and fourth units are arranged in succession.   
     
     
       2. An absorption type refrigerating machine according to claim 1, wherein said regenerator means and said condenser means are arranged at an upper portion of said evaporator means and said absorber means. 
     
     
       3. An absorption type refrigerating machine comprising an evaporator means, an absorber means, a condenser means, a regenerator means, a solution heat exchanger means, a solution pump means, a refrigerant pump means, and piping means for leading chilled water into said evaporator means and cooling water into said absorber means and said condenser means, each of said evaporator means, said absorber means, said condenser means and regenerator means is respectively divided into N sections, each of said Nth sections of said evaporator means share a common enclosure with corresponding Nth sections of said absorber means, a first section of said N sections of absorber means and a first section of said N sections of evaporator means are combined to form a first unit, a second section of said N sections of absorber means and a second section of said N sections of said evaporator means are combined to form a second unit, and said first unit and said second unit are arranged in successive order, each of said Nth sections of said regenerator means share a common enclosure with corresponding Nth sections of said evaporator means, a first section of said end sections of condenser means and a first section of said N sections of regenerator means are combined to form a third unit, a second section of said N sections of condenser means and a second section of said N sections of regenerator means are combined to form a fourth unit, and said third unit and said fourth unit are arranged in succession, said N sections of said regenerator means and said N sections of said condenser means are arranged at an upper portion of respective N sections of said evaporator means and said absorber means, and wherein a common shell means is provided for accommodating each of said evaporator means, said absorber means, said condenser means, and said regenerator means. 
     
     
       4. An absorption type refrigerating machine comprising an evaporator means, an absorber means, a condenser means, a regenerator means, a solution heat exchanger means, a solution pump means, a refrigerant pump means, and piping means for leading chilled water into said evaporator means and cooling water into said absorber means and said condenser means, each of said evaporator means, said absorber means, said condenser means and said regenerator means is respectively divided into N sections, each of said Nth sections of said evaporator means share a common enclosure with corresponding Nth sections of said absorber means, a first section of said N sections of absorber means and a first section of said N sections of evaporator means are combined to form a first unit, a second section of each of said Nth sections of absorber means and a second section of said N sections of said evaporator means are combined to form a second unit, and said first unit and said second unit are arranged in successive order, said pipe means including a first flow passage through which the chilled water is successively led from said Nth section of said evaporator means to the (N-1) section of said evaporator means from a high level temperature side of said evaporator means, and a second flow passage through which the cooling water is successively led into said Nth section of said absorber means and said Nth section of said condenser means from a low temperature level side, after the cooling water has passed said Nth section said absorber means and said Nth section of said condenser means, and the cooling water is led into the (N-1) section of said absorber means and the (N-1) section of said condenser means. 
     
     
       5. An absorption type refrigerating machine according to claim 4, wherein N equal two. 
     
     
       6. An absorption type refrigerating machine according to claim 5, wherein said N sections of said regenerator means and said N sections of said condenser means are respectively arranged at an upper portion of said N sections of said evaporator means and said N sections of said absorber means. 
     
     
       7. An absorption type refrigerating machine comprising an evaporator means, an absorber means, a condenser means, a regenerator means, a solution heat exchanger means, a solution pump means, a refrigerant pump means and piping means for leading chilled water into said evaporator means and cooling water into said absorber means and said condenser means, each of said evaporator means, said absorber means, said condenser means and said regenerator means is respectively divided into N sections, each of said Nth sections of said evaporator means share a common enclosure with corresponding Nth sections of said absorber means, a first section of said N sections of absorber means and a first section of said N sections of evaporator means are combined to form a first unit, a second section of said N section of absorber means and a second section of said N sections of said evaporator means are combined to form a second unit, and said first unit and said second unit are arranged in successive order, said piping means includes a first flow passage through which the chilled water is successively led from said Nth section of said evaporator means to the (N-1) section of said evaporator means from a high temperature level side of said evaporator means, and a second flow passage through which the cooling water is successively led into said Nth section of said absorber means and said Nth section of said condenser means from a low temperature level side, after the cooling water has passed said Nth section of said absorber means and said Nth section of said condenser means, and the cooling water is led into the (N-1) section of said absorber means and the (N-1) section of said condenser means, said N sections of regenerator means and said N sections of condenser means are respectively arranged at an upper portion of said N sections of said evaporator means and said N sections of said absorber means, and wherein a common shell means is provided for accommodating each of said evaporator means, said absorber means, said condenser means and said regenerator means. 
     
     
       8. An absorption type refrigerating machine comprising an evaporator means, an absorber means, a condenser means, a regenerator means, a solution heat exchanger means, a solution pump means, a refrigerant pump means and piping means for leading chilled water into said evaporator means and cooling water into said absorber means and said condenser means, each of said evaporator means, said absorber means, said condenser means and said regenerator means are respectively divided into N sections, each of said Nth sections of said evaporator means share a common enclosure with corresponding Nth sections of said absorber means, a first section of said N sections of absorber means and a first section of said N sections of evaporator means are combined to form a first unit, a second section of said N sections of absorber means and a second section of said N sections of said evaporator means are combined to form a second unit, and said first unit and said second unit are arranged in successive order, said piping means includes a first flow passage through which the chilled water is successively led from said Nth section of said evaporator means to the (N-1) section of said evaporator means from a high temperature level side of said evaporator means, and a second flow passage through which the cooling water is successively led into said Nth section of said absorber means and said Nth section of said condenser means from a low temperature level side, after the cooling water has passed said Nth section of said absorber means and said Nth section of said condenser means, the cooling water then flows together and is subsequently branched and led into the (N-1) section of said absorber means and the (N-1) section of said condenser means, and cooling water is subsequently recombined and flows out of the refrigerating machine. 
     
     
       9. An absorption type refrigerating machine according to claim 8, wherein N equal two. 
     
     
       10. An absorption type refrigerating machine according to claim 9, wherein said N sections of said regenerator means and said N sections of said condenser means are respectively arranged at an upper portion of said N sections of said evaporator means and said N sections of said absorber means. 
     
     
       11. An absorption type refrigerating machine comprising an evaporator means, an absorber means, a condenser means, a regenerator means, a solution heat exchanger means, a solution pump means, a refrigerant pump means and piping means for leading chilled water into said evaporator means and cooling water into said absorber means and said condenser means, each of said evaporator means, said absorber means, said condenser means and said regenerator means is respectively divided into N sections, each of said Nth sections of said evaporator means share a common enclosure with corresponding Nth sections of said absorber means, a first section of said N sections of absorber means and a first section of said N sections of evaporator means are combined to form a first unit, a second section of said N section of absorber means and a second section of said N sections of said evaporator means are combined to form a second unit, and said first unit and said second unit are arranged in successive order, said piping means includes a first flow passage through which the chilled water is successively led from said Nth section of said evaporator means to the (N-1) section of said evaporator means from a high temperature level side of said evaporator means, and a second flow passage through which the cooling water is successively led into said Nth section of said absorber means and said Nth section of said condenser means from a low level temperature side, after the cooling water has passed said Nth section of said absorber means and said Nth section of said condenser means, the cooling water flows together and is subsequently branched with the cooling water being led into the (N-1) section of said absorber means and the (N-1) section of said condenser means, and subsequently recombined and flows out of the refrigerating machine, said divided absorber, said N sections of regenerator means and said N sections of condenser means are respectively arranged at an upper portion of said N sections of said evaporator means and said N sections of said absorber means, and wherein a common shell means is provided for accommodating each of said evaporator means, said absorber means, said condenser means, and said regenerator means. 
     
     
       12. An absorption type refrigerating machine comprising an evaporator means, an absorber means, a condenser means, a regenerator means, a solution heat exchanger means, a solution pump means, a refrigerant pump means and piping means for leading chilled water into said evaporator means and cooling water into said absorber means and said condenser means, each of said evaporator means, said absorber means, said condenser means and said regenerator means is respectively divided into N sections, each of said Nth sections of said evaporator means share a common enclosure with corresponding Nth sections of said absorber means, a first section of said N sections of absorber means and a first section of said N sections of evaporator means are combined to form a first unit, a second section of said N sections of absorber means and a second section of said N sections of said evaporator means are combined to form a second unit, and said first unit and said second unit are arranged in successive order, each of said Nth sections of said regenerator means share a common enclosure with corresponding Nth sections of said evaporator means, a first section of said N sections of condenser means and a first section of said N sections of regenerator means are combined to form a third unit, a second section of said N sections of condenser means and a second section of said N sections of regenerator means are combined to form a fourth unit, and said third unit and said fourth unit are arranged in succession, said piping means includes a first flow passage through which the chilled water is successively led from said Nth section of said evaporator means to the (N-1) section of said evaporator means from a high level temperature side of said evaporator means, a second flow passage through which the cooling water is successively led from said Nth section of said absorber means to the (N-1) section of said absorber means from a low temperature level side, and a third flow passage through which the cooling water is successively led from said Nth section of said condenser means to the (N-1) section of said condenser means from the low temperature level side. 
     
     
       13. An absorption type refrigerating machine according to claim 12, wherein N equal two. 
     
     
       14. An absorption type refrigerating machine according to claim 13, wherein said N sections of said regenerator means and said N sections of said condenser means are respectively arranged at an upper portion of said N sections of said evaporator means and said N sections of said absorber means. 
     
     
       15. An absorption type refrigerating machine comprising an evaporator means, an absorber means, a condenser means, a regenerator means, a solution heat exchanger means, a solution pump means, a refrigerant pump means and piping means for leading chilled water into said evaporator means and cooling water into said absorber means and said condenser means, each of said evaporator means, said absorber means, said condenser means and said regenerator means is respectively divided into N sections, each of said Nth sections of said evaporator means share a common enclosure with corresponding Nth sections of said absorber means, a first section of said N sections of absorber means and a first section of said N sections of evaporator means are combined to form a first unit, a second section of said N sections of absorber means and a second section of said N sections of said evaporator means are combined to form a second unit, and said first unit and said second unit are arranged in successive order, of said Nth sections of said regenerator means share a common enclosure with corresponding Nth sections of said evaporator means, a first section of said N sections of condenser means and a first section of said N sections of regenerator means are combined to form a third unit, a second section of said N sections of condenser means and a second section of said N sections of regenerator means are combined to form a fourth unit, and said third unit and said fourth unit are arranged in succession, said piping means includes a first flow passage through which the chilled water is successively led from said Nth section of said evaporator means to the (N-1) section of said evaporator means from a high level temperature side of said evaporator means, a second flow passage through which the cooling water is successively led from said Nth section of said absorber means to the (N-1) section of said absorber means from a low temperature level side, and a third flow passage through which the cooling water is successively led from said Nth section of said condenser means to the (N-1) section of said condenser means from the low temperature level side, said divided evaporator and said divided absorber, said N sections of regenerator means and said N sections of condenser means are respectively arranged at an upper portion of said N sections of said evaporator means and absorber means, and wherein a common shell means is provided for accommodating each of said evaporator means, said absorber means, said condenser means, and said evaporator means. 
     
     
       16. An absorption type refrigerating machine comprising an evaporator means, an absorber means, a condenser means, a regenerator means, a solution heat exchanger means, a solution pump means, a refrigerant pump means and piping means for leading chilled water into said evaporator means and cooling water into said absorber means and said condenser means, each of said evaporator means, said absorber means, said condenser means and said regenerator means are respectively divided into N sections, each of said Nth sections of said evaporator means share a common enclosure with corresponding Nth sections of said absorber means, a first section of said N sections of absorber means and a first section of said N sections of evaporator means are combined to form a first unit, a second section of said N sections of absorber means and a second section of said N sections of said evaporator means are combined to form a second unit, and said first unit and said second unit are arranged in successive order, each of said Nth sections of said regenerator means share a common enclosure with corresponding Nth sections of said evaporator means, a first section of said N sections of condenser means and a first section of said N sections of regenerator means are combined to form a third unit, a second section of said N sections of condenser means and a second section of said N sections of regenerator means are combined to form a fourth unit, and said third unit and said fourth unit are arranged in succession, said piping means includes a first flow passage through which the chilled water is successively led from said Nth section of said evaporator means to the (N-1) section of said evaporator means from a high temperature level side of said evaporator means, and a second flow passage through which the cooling water is branched, with a first portion of the cooling water being successively led from said Nth section of said absorber means to said Nth section of said condenser from a low temperature level side, and a second portion being successively led from said Nth section of said condenser means to the (N-1) section of said condenser means and recombining with the first portion of cooling water to flow out of the refrigerating machine. 
     
     
       17. An absorption type refrigerating machine according to claim 16, wherein N equal two. 
     
     
       18. An absorption type refrigerating machine according to claim 17, wherein said N sections of said regenerator means and said N sections of said condenser means are respectively arranged at an upper portion of said N sections of said evaporator means and said N sections of said absorber means. 
     
     
       19. An absorption type refrigerating machine comprising an evaporator means, an absorber means, a condenser means, a regenerator means, a solution heat exchanger means, a solution pump means, a refrigerant pump means and piping means for leading chilled water into said evaporator means and cooling water into said absorber means and said condenser means, each of said evaporator means, said absorber means, said condenser means and said regenerator means is respectively divided into N sections, each of said Nth sections of said evaporator means share a common enclosure with corresponding Nth sections of said absorber means, a first section of said N sections of absorber means and a first section of said N sections of evaporator means are combined to form a first unit, a second section of said N sections of absorber means and a second section of said N sections of said evaporator means are combined to form a second unit, and said first unit and said second unit are arranged in successive order, each of said Nth sections of said regenerator means share a common enclosure with corresponding Nth sections of said evaporator means, a first section of said N sections of condenser means and a first section of said N sections of regenerator means are combined to form a third unit, a second section of said N sections of condenser means and a second section of said N sections of regenerator means are combined to form a fourth unit, and said third unit and said fourth unit are arranged in succession, said piping means includes a first flow passage through which the chilled water is successively led from said Nth section of said evaporator means to the (N-1) section of said evaporator means from a high temperature level side of said evaporator means, and a second flow passage through which the cooling water is branched, with a first portion of the cooling water being successively led from said Nth section of said absorber means to said Nth section of said condenser from a low temperature level side, and a second portion being successively led from said Nth section of said condenser means to the (N-1) section of said condenser means and recombining with the first portion of cooling water to flow out of the refrigerating machine, said N sections of regenerator means and said N sections of condenser means are respectively arranged at an upper portion of said N sections of evaporator means and absorber means, and wherein a common shell means is provided for accommodating each of said evaporator means, said absorber means, said condenser means and said regenerator means.